CN202758950U - Explosion-resistant square battery module - Google Patents
Explosion-resistant square battery module Download PDFInfo
- Publication number
- CN202758950U CN202758950U CN2012203962550U CN201220396255U CN202758950U CN 202758950 U CN202758950 U CN 202758950U CN 2012203962550 U CN2012203962550 U CN 2012203962550U CN 201220396255 U CN201220396255 U CN 201220396255U CN 202758950 U CN202758950 U CN 202758950U
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- CN
- China
- Prior art keywords
- battery
- battery module
- rupture disk
- cover plate
- electrode body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model designs a battery module which comprises an electrode body, a partition, a battery main body which is alternately stacked up by the partition and the electrode body and a battery case holding the battery body. Three sides of the battery case are sealed off and only one opening is provided on the battery case. A cover plate of a sealed battery module is placed on the battery case. A positive terminal which is connected with a positive electrode body and a negative terminal which is connected with a negative electrode body are placed on the cover plate. A blasting mouth is placed on the cover plate. A blasting sheet used for sealing the blasting mouth is placed on the blasting mouth. By adopting the explosion-resistant square battery module, when inner pressure of the battery module is too high, the blasting sheet can blast first, thereby preventing the battery from blasting. The blasting sheet and a blasting hole are fixedly combined, thereby being free of external influence and stable in operation. The battery model is reasonable in structure design, convenient to process in large scale, assemble and maintain.
Description
Technical field
The utility model relates to a kind of battery module, especially a kind of anti-explosion battery module.
Background technology
Because lithium ion battery has the characteristics such as volume is little, discharge performance good, memoryless with respect to the rechargeable battery of other types, is widely used in the new energy fields such as electric automobile and energy storage; But lithium ion battery is in production or use procedure, because electrolyte has severe corrosive and strong swellability, add in the electrolyte the improper reasons such as the excessive or over-charging of battery of moisture, easily so that produce a large amount of gases in the cell body, and battery case (housing is generally the shell of steel, aluminium and alloy thereof) expanded cause blast, have very large danger.
Application number is in the patent of CN201120081437.4, designed a kind of explosion protection for batteries, major programme is in the middle section setting of the cover plate weld zone concentric with cover plate, and be that the brace of nickel sheet is placed in the weld zone with material, make both become integral body by soldering, the shortcoming that this utility model exists is: 1) brace is not welded within the cover plate, is subject to external force and deforms, comes off; 2) area of weld zone is too small, can not prevent effectively that other positions of battery case from explosion occuring.
The utility model content
The utility model provides a kind of anti-explosion battery module.
For reaching above-mentioned purpose, the utility model has designed a kind of anti-explosion battery module, it comprises electrode body, spacer, by spacer and the alternately laminated battery body of electrode body isolation, the battery case that holds battery body, described battery case three side sealing closes and is provided with and an opening only arranged, the cover plate of closing battery module is set on the described battery case, the positive terminal and the negative terminal that is connected the negative electricity polar body that connect the anode electrode body are set on the described cover plate, the explosion mouth is set on the described cover plate, the rupture disk of sealing explosion mouth is set on the described explosion mouth, the section of breaking is set on the described rupture disk.
Cover closure is lived the opening of battery module, and the rupture disk on the cover plate is sealed by rupture disk, and whole battery module has been hermetic with respect to the external world.
The section of breaking is set on the rupture disk can be so that rupture disk more easily breaks, when battery module is inner produce gas after, battery module expands, the section's explosion of will breaking can prevent effectively that battery module from blasting.
As preferably, described explosion mouth be shaped as Long Circle and concentric with cover plate.
Described explosion mouth be shaped as Long Circle and concentric with cover plate, Long Circle is easy to processing and demolition effect is excellent, with the concentric modularization standardization of being convenient to of cover plate.
As preferably, described rupture disk is arranged on the cover plate inner face.
Rupture disk is arranged on the cover plate inner face, prevents that outside friction from causing torsional deformation to rupture disk even come off.
As preferably, the section of breaking that arranges on the described rupture disk comprises strip groove.
The section of breaking is set on the rupture disk and strip groove is set so that the easier explosion of rupture disk in the section of breaking.
As preferably, the direction that described strip groove is positioned at the middle position of rupture disk and prolongs the rupture disk longest edge is extended.
Middle position at rupture disk arranges strip groove so that rupture disk more easily breaks when being subject to interior pressure.
As preferably, strip groove is set respectively on the semicircular area on described rupture disk both sides and intersects with the strip groove of the middle position of rupture disk.
Strip groove is set respectively on the semicircular area on rupture disk both sides and intersects with the strip groove of the middle position of rupture disk, can so that the degree of splitting of rupture disk is larger, discharge quickly the interior pressure of battery module.
As preferably, the strip groove quantity on the border circular areas of described rupture disk both sides is that two and angle are 90 degree.
Be that two and angle are the more easily processing of 90 degree with the strip groove quantity on the border circular areas of rupture disk both sides, demolition effect is better.
After the scheme that employing the utility model provides, when anti-explosion battery inside modules pressure was excessive, rupture disk is explosion at first, effectively stoped battery to be blasted; The combination of rupture disk and blast hole is firm, is not subject to ectocine, working stability; The anti-explosion battery modular structure is reasonable in design, is convenient to scale processing, assembling and maintenance.
Description of drawings
Fig. 1 is the anti-explosion battery module diagram;
Fig. 2 is anti-explosion battery module vertical view;
Wherein, 1, battery case, 2, cover plate, 21, positive terminal, 22, negative terminal, 23, the explosion mouth, 24, rupture disk, 25, the section of breaking.
Execution mode
Below in conjunction with specific embodiment the utility model is described further.
Embodiment 1
Shown in Fig. 1-2, battery module comprises electrode body, spacer, by the alternately laminated battery body of spacer and electrode body isolation, hold the battery case 1 of battery body, described battery case 1 three side sealing closes and is provided with and an opening only arranged, the cover plate 2 of closing battery module is set on the described battery case 1, the positive terminal 21 and the negative terminal 22 that is connected the negative electricity polar body that connect the anode electrode body are set on the described cover plate 2, explosion mouth 23 is set on the described cover plate, the rupture disk 24 of sealing explosion mouth 23 is set on the described explosion mouth 23.
What be arranged on the Centromedian explosion mouth 23 of cover plate is shaped as Long Circle and concentric with cover plate, and rupture disk 24 forms and be welded on the cover plate inboard by the aluminium flake compacting.
Embodiment 2
Shown in Fig. 1-2, battery module comprises electrode body, spacer, by spacer and the alternately laminated battery body of electrode body isolation, the battery case 1 that holds battery body, described battery case 1 three side sealing closes and is provided with and an opening only arranged, the cover plate 2 of closing battery module is set on the described battery case 1, the positive terminal 21 and the negative terminal 22 that is connected the negative electricity polar body that connect the anode electrode body are set on the described cover plate 2, explosion mouth 23 is set on the described cover plate, the rupture disk 24 of sealing explosion mouth 23 is set on the described explosion mouth 23, the section 25 of breaking is set on the described rupture disk 24.
What be arranged on the Centromedian explosion mouth 23 of cover plate is shaped as Long Circle and concentric with cover plate, rupture disk 24 forms and is welded on the cover plate inboard by the aluminium flake compacting, the section 25 of breaking is comprised of five strip grooves, wherein a longest strip groove is arranged on the centre of rupture disk, in the Long Circle zone on rupture disk 24 both sides two mutually perpendicular strip grooves are set respectively, and the center of circle in Long Circle zone be arranged on rupture disk 24 Centromedian strip grooves and intersect.
Claims (7)
1. battery module, comprise electrode body, spacer, by the alternately laminated battery body of spacer and electrode body isolation, hold the battery case of battery body, described battery case three side sealing closes and is provided with and an opening only arranged, the cover plate of closing battery module is set on the described battery case, the positive terminal and the negative terminal that is connected the negative electricity polar body that connect the anode electrode body are set on the described cover plate, it is characterized in that: the explosion mouth is set on the described cover plate, the rupture disk of sealing explosion mouth is set on the described explosion mouth, the section of breaking is set on the described rupture disk.
2. battery module according to claim 1 is characterized in that: described explosion mouth be shaped as Long Circle and concentric with cover plate.
3. battery module according to claim 1, it is characterized in that: described rupture disk is arranged on the cover plate inner face.
4. battery module according to claim 1, it is characterized in that: the section of breaking that arranges on the described rupture disk comprises strip groove.
5. battery module according to claim 4 is characterized in that: the direction that described strip groove is positioned at the middle position of rupture disk and prolongs the rupture disk longest edge is extended.
6. battery module according to claim 4 is characterized in that: strip groove is set respectively on the semicircular area on described rupture disk both sides and intersects with the strip groove of the middle position of rupture disk.
7. battery module according to claim 6 is characterized in that: the strip groove quantity on the border circular areas of described rupture disk both sides is that two and angle are 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203962550U CN202758950U (en) | 2012-08-10 | 2012-08-10 | Explosion-resistant square battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203962550U CN202758950U (en) | 2012-08-10 | 2012-08-10 | Explosion-resistant square battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202758950U true CN202758950U (en) | 2013-02-27 |
Family
ID=47738115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203962550U Expired - Lifetime CN202758950U (en) | 2012-08-10 | 2012-08-10 | Explosion-resistant square battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202758950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129297A (en) * | 2016-08-18 | 2016-11-16 | 系统电子科技（镇江）有限公司 | Novel battery module |
-
2012
- 2012-08-10 CN CN2012203962550U patent/CN202758950U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129297A (en) * | 2016-08-18 | 2016-11-16 | 系统电子科技（镇江）有限公司 | Novel battery module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 313000 Huzhou economic and Technological Development Zone, Zhejiang, Hung Fung Road, No. 2198 Patentee after: MICROVAST POWER SYSTEMS Co.,Ltd. Address before: 313000 Zhejiang Province, Huzhou City Road No. 1555 sunny Industrial Science and Technology Park 1 Patentee before: MICROVAST POWER SYSTEMS Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |